TY  - BOOK
AU  - Ward, Dederick C..
TI  - Geologic reference sources / 
SN  - 0-8108-0477-8
U1  - Ha 
PY  - 1997///
CY  - New Jersey : 
PB  - The Scarecrow Press, Inc , 
KW  - Stratigraphy
ER  -